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228153378 = 2338025563
BaseRepresentation
bin11011001100101…
…01100000100010
3120220022101121010
431212111200202
5431401402003
634350041350
75440162125
oct1546254042
9526271533
10228153378
11107872012
12644a9256
13383638cb
14224303bc
151506b003
hexd995822

228153378 has 8 divisors (see below), whose sum is σ = 456306768. Its totient is φ = 76051124.

The previous prime is 228153377. The next prime is 228153389. The reversal of 228153378 is 873351822.

228153378 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

228153378 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (228153377) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19012776 + ... + 19012787.

It is an arithmetic number, because the mean of its divisors is an integer number (57038346).

Almost surely, 2228153378 is an apocalyptic number.

228153378 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228153378 is a wasteful number, since it uses less digits than its factorization.

228153378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38025568.

The product of its digits is 80640, while the sum is 39.

The square root of 228153378 is about 15104.7468697757. The cubic root of 228153378 is about 611.0484325823.

The spelling of 228153378 in words is "two hundred twenty-eight million, one hundred fifty-three thousand, three hundred seventy-eight".

Divisors: 1 2 3 6 38025563 76051126 114076689 228153378